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Finding the Fourth Proportional to 279,881.60, 419,702.44 and 130,106.26

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Solution

The fourth proportional to 279,881.60, 419,702.44 and 130,106.26 is: 195,103.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,881.60 : 419,702.44 = 130,106.26 : x
  2. Step 2: Convert to fraction form
    279,881.60/419,702.44 = 130,106.26/x
  3. Step 3: Cross multiply
    279,881.60x = 419,702.44 × 130,106.26
  4. Step 4: Simplify right side
    279,881.60x = 54,605,914,781.27
  5. Step 5: Solve for x
    x = 54,605,914,781.27/279,881.60
  6. Step 6: Final answer
    x = 195,103.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.